c#-网络-Socket-简单实验

最新推荐文章于 2023-07-04 14:26:56 发布

原创最新推荐文章于 2023-07-04 14:26:56 发布 · 385 阅读

0 ·

CC 4.0 BY-SA版权

c#-网络专栏收录该内容

31 篇文章

订阅专栏

该博客展示了如何使用C#实现一个简单的TCP套接字通信，包括服务端监听和接收连接，以及客户端发起连接并发送接收数据。服务端通过`Socket.Accept()`接收客户端请求，读取直到接收到'FINAL'标志，然后发送确认消息。客户端则连接到指定IP和端口，发送数据并接收服务端响应。

1.概要

1.1 服务端

Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Bind(new IPEndPoint(IPAddress.Any, 2112));
socket.Listen(10);

Socket socket1 = socket.Accept();

int num = socket1.Receive(receivedBytes);

socket1.Send(replyMessage);

1.2 客户端

Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
socket.Connect(iPEndPoint);

socket.Send(forwardMessage);

int num = socket.Receive(receivedBytes);

2 代码

2.1 代码-服务端

using System;
using System.Net;
using System.Net.Sockets;
using System.IO;
using System.Text;

namespace ConsoleApp9
{
    class Program
    {
        delegate void updateDisplayDelegae(String text);
        static void Main(string[] args)
        {
            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            socket.Bind(new IPEndPoint(IPAddress.Any, 2112));
            socket.Listen(10);
            while (true) {
                Console.WriteLine("");
                Socket socket1 = socket.Accept();
                String receivedValue = string.Empty;
                while (true) {
                    Byte[] receivedBytes = new Byte[1024];
                    int num = socket1.Receive(receivedBytes);
                    Console.WriteLine("receiveing .");
                    receivedValue += Encoding.ASCII.GetString(receivedBytes, 0, num);
                    if (receivedValue.IndexOf("FINAL") > -1) {
                        break;
                    }

                }
                Console.WriteLine("receivedValue:{0}", receivedValue);
                string replyValue = "message successfully received.";
                byte[] replyMessage = Encoding.ASCII.GetBytes(replyValue);
                socket1.Send(replyMessage);
                socket1.Shutdown(SocketShutdown.Both); 
            }
            socket.Close();
            Console.ReadKey();
        }
        
    }
}

2.2 代码-客户端

using System;
using System.Net.Sockets;
using System.IO;
using System.Net;
using System.Text;

namespace ConsoleApp10
{
    class Program
    {
        static void Main(string[] args)
        {
            byte[] receivedBytes = new byte[1024];
            IPHostEntry iPHostEntry = Dns.Resolve("127.0.0.1");
            IPAddress iPAddress = iPHostEntry.AddressList[0];
            IPEndPoint iPEndPoint = new IPEndPoint(iPAddress, 2112);
            Console.WriteLine("Starting: ceating socket object");

            Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            socket.Connect(iPEndPoint);
            Console.WriteLine("");

            string sendingMessage = "hello word service";
            byte[] forwardMessage = Encoding.ASCII.GetBytes(sendingMessage+ "[FINAL]");
            socket.Send(forwardMessage);

            int num = socket.Receive(receivedBytes);
            Console.WriteLine("收到的数据：{0}",Encoding.ASCII.GetString(receivedBytes,0,num));
            socket.Shutdown(SocketShutdown.Both);
            socket.Close();

            Console.ReadKey();
        }
    }
}